Aeroplane speed-boat



R. N.D0NEY.

AEROPLANE SPEED BOAT.

APPLICATION FILED AUG.2I. 1919.

Ptena Mar. 16, 1920.

mfr/5555 A .771 g* "fork/v. D0 y Qi ff Y lessees.

invrrn srerns rarer Frien- ROY N. DION-EY, F AUBURN, NEW YORK.`

AEROBIQANE fsrniuroer.

Specifica-tion of `Letters Patent.

'rat-enten Margie, ieee.

Application filed August 21, r1919. Serial No. 318,995.

T0 all whom t may` Concern.; t Be-ityk-nown that lf, ROYN. DoNEY, a citi- Zenv ofthe United States, residing at Auburinin the countylof Cayuga `and State of New York, have inventedcertain inew and useful Improvements in Aeroplane SpeedcBoats of whiehthe following is especifica- ;tion.

which is constructed so Athat when momentamis gathered andftheeugine is running y the weight of the boat willfbe suspended by fplanes connected thereto althoughthe prof ,pellerandlkeel will be submergedin water,

thusfeausing theresistance of the water acting on vthe.revolving propeller kto 'drive .theV

:boatmore rapidly than if thepropellerwere operating .in the lai-r,-V whiley the keel `will steady the movements ofthe boat intlight. Another .object of this invention is the .production `of f 'an aeroplane yspeed boat .which is .so constructed that vthe planes will litt .ai boat .body from the water vand,suspend `the same .as .the `device gathers speed, Valthough the ypropeller will be submerged in lyvater atgall times, thus holdingthe boat .hulliree from. action byrough water and 1n this Wayovercominp; seasickness.

V, :Apstill Ltlirther'olojectofthe invention is the production of an aeroplanerspeed boat which includesa false keel A,carried yupon,

` ,the hull y,ot Lthe 4.boat v this keel increasing in '.heightgtowardits rearenchxso that when the 1device in use and the yplanes contiguous to the forwardend ofthehull yliitthe same,

` -the gkeel iat the rear :portion will stillbe subainergedmso that thepropeller willstill oper- .ateewithinlthe water `andthus from aminimum..amount ofpower ywill attain, the great- .est resiilt'inspeed l.due to theresistanceof thewaten against `this propeller yand causing .the same f to Abe driven Iforwardly the f sn'mlllresistance ofthe boat hullbeingsuslpendedin air-will allowlthe device to move rapidlyc I One practical Iform of v.constructionand ,assembly yof ,the present ,invention will be hereinafter `deseribed and yis illustrated in the drawing, in`which- Figure l is 1a side elevation. partly in fragmentary section ofA the :complete device.

.EiggQQis la top plan view ofthe device ,with one the wings shown fragmentary. WFig.'` 3ds a rearl elevation oilthe device. In thepreterrcd einbodnneutof theypres- 'This invention is an aeroplane speedboat vport.

yent invention, Vabout to be speciiically described, it willrbe*understood that theprinhulls ofgeneral type indicated at 5,`h,aving seats 5 f oi-any other interiorconstructionA whioh does not in any way enter into the spirit of the present invention. 'It is well known that in the rpropulsion oiisuch boats the resistancelof the water against such A 1.nove-mcmt isenormous. In high powered v cipleo'f the `invention is ,applicable to boat l boats there is a considerable displacement of Y water at thebowof. the boat which necessif ;ta t,es the employment of highpowergto overcome such resistance.

planes, theresistance o'l'air isvery slight,

In the use of aero-y butin such devices the propellers 'likewise are rotating against atmospheric pressure.k

which does not allow of as Yvfijreatl,resistance against the propeller to increase the speed of the ,planes Ias can be accomplished byA combined laeroplane Speed boats. With such a device aswill be 'apparent*.hereinattei. the

planes vwill li'ftlthe Aiterward,portion of they boat v4from the `water and thus overeonfie4 the resistance of' water thereagainsta valthough the propelling lmeans is submerged in the water and thus can propel vrthe boat more rapidly in view of the increased .resistance against .such propeller which drives 1the lsame torwardlyandas airxpfresvsure on the ,suspendedboat body will resist ,suchvpropuh sion slightly, obviously the device can Iatplanes are carried contiguous to thetorward end ot the bull '5 so thatas the speed is .gathcred and the air isi'bfmledy beneathfthesc planesthe forward end of Ithe hullwill be hereinafter more `apparent. It should be understood that although only monoplanes aneillustrated hereimbplanes orV any other greater .number of vplanes desiredmay `be employed, according to ,the necessity re- (wired by the size otthe'hull, withouttdeparting y.from the spirit of the presentinven- `lifted completely [out ot thewater'as will be tion.V It should be understood that the planes '7 extend on opposite sides of the hull 5 although the inner ends of the planes are Cil spaced apart, thus allowing sufficient space 'for the planes to be swung vertically upon suitable means orto not project beyond the sides of thehull vwhen the device is entering a harbor on the surface of the water.

The keel 9 extends from the bow ofthe hull 5 to the stern thereof, as is clear from an inspection oic Fig. l and is somewhat similar to the ordinary manner ot k els.'

However, with the present keel it will be seen that it tapers toward its front end as shown at l0. Consequently it increases in breadth or height as at l1, at its rear end and for this reason at the stern ofl the hull it projects downwardly for a considerable distance tlierebelow. i high power engine l2 is provided and has its shaft 13 extending obliquely to the keel 11, the rear end of the keel being beveled oil' as atl-l to allow the propeller l5 to. be carried upon the lower end of the shaft 13 Yto allow the propeller to revolve contiguous to the end lil ot the key without interference from the keel. lt should be understood however, that I reserve thel wide-st latitude in respect to the connection troni the engine to the propeller so that if desired the propeller could be carried at the end of a shaft which extends horizon- I `tally'sothat thetlirust of the propeller will water.

be directly forwardly under such conditions, although itis 'not deemed necessary to illus- `trate such structure herein.

A rudder -16 isvpivoted upon the rear end of the hull 5 and has a handle 17 whereby the coxswain may easily steer the device. -When inv operation, the device will of course rest upon -thelsurface of a body of water.

,TheV engine may then be started and-the hull will be driven forwardly in the usual manner. 'As the speed ot the hull increases however, the planes 'l' will bank 'air therebeneath. and within a comparatively short Y however at its rear endl as at l1, the propeller will be submerged in the water and as it rotates rapidly, being driven by a high powered enginelQ. the resistance of the water` against the rapidly rotating propeller will cause the hull to be moved forwardly .at an ever increasing speed until a maximum speedis attained. The Ahull will not l besubjected'to movement 'caused by rough water as it will be suspendedby the planes 7 in the airand will inthis way overcome motion of water and will accordingly prevent sea sickness from such movement. During Ysuch action the keel at its rear end will be submerged in the water and will thus steady the hull, preventing` any tendency otside swinging of the hull. Thus the hull will be held to its course so that wind will not vary or buffet the saine, as is common with aeroplanes.. `As pointed out above, the propeller-s ot aeroplanes being resisted only by atmospheric pressure have not the resistance encountered by the propeller rotated in water.Y Consequently, the propeller in water has a greater resistance and for this reason because ot rapid rotation will loe driven forward very rapidly, as it has great powerdue to this resistance of water. In an ordinary boat the propeller-loses its power to a certain extent in view of the resistance of water at the bow..

of the boat.v With the present device however with they bow and practically the entire hull suspended in air, the resistance of air against the hull will be very slight and thus the propulsive powerv ot the propeller will drive the hull very rapidly, since the portion of the keel which actually extends into the water will give Vso little resistance as will make such resistance hardly appreciable.

Itis obvious that in ydesired cases, the

size of the planes and the number thereof 'can loe increased according to the proportion ofthe hull upon which the saine areV mounted, while the size of kpropellersor even the numbers of propellers may be increased u-pon the keels, according to the size ot a hull, and thus very large boats may be driven in a manner similar to the manner in which the invention now Vbeing described is driven.

' It will therefore-loe seen that a very simple and etlicient means has been provided wherein the/principles ot an aeroplane and of a boat propelledby ahigh power engine are combinedto unite the points of merit of eachv and avoidtlie objections ot each thus producing a device which will operate with maximum etliciency. It is obvious `that while the boat isin operation it will not entirelyslide through the lair'similar to an aeroplane, but will tend toV skim the surface of water to-allow its propeller /to be at all times submerged. When itV isv desired to enter a harbor, the speed of the engine may be decreased and consequently the hull will drop backto the surface of the water and be propelled into thev harbor in the manner usually employed in connection with ordinary boats. v v 1 The foregoing description and the drawings havereference to what may be considered the preferred, or approved form of my invention. It is to be understood that I may make such changes in construction and arrangement and combination of parts,

materials, dimensions, et cetera, as may prove expedient and fall within the scope of the appended claims.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is l. In a device of the class described, the combination of a hull, a lifting means contiguous to the forward portion of the hull, a keel connected to the bottom of the hull and extending longitudinally thereof, said keel increasing in height toward its rear end, a propelling means4 carried by said Vhull and extending to the lower portion of said keel as and for the purposes set forth. 2. In a device of the character described,

the combination of a hull, planes carried contiguous to the forward portions of the hull, said planes extending beyond opposite sides 0f the hull, the inner ends of the planes being spaced apart thus allowing vthe space above the hull to be unobstructed, a

keel carried upon the bottom of the hull and increasing in height toward its rear end, a propeller', and means 'for supporting and driving'said propellerfat the lower por-v tion of said keel, as and for the purposes set forth. l

In testimony whereof I' affix my signature in presence of two witnesses. f

ROY N. DONEY. Witnesses:

, W. H. NICHOLS, LUCILE KNAPP. 

